All Problems

Electromagnetic Induction. Maxwells Equations

Problem 3.324

A current \(I_{0}=1.9\) A flows in a long closed solenoid. The wire it is wound of is in a superconducting state. Find the current flowing in the solenoid when the length of the solenoid is increased by \(\eta=5 \%\)

Reveal Answer
I=I0(1+η)=2 AI=I_{0}(1+\eta)=2 \mathrm{~A}